canada



(No Model) W. L. EVELAND.

END 03 THRUST'BEARI NG. I No. 585,516. Patented June 29,1897.

UNITED STATES PATENT OFFICE.

WVILLIALWI LOIVRANCE EVELAND, OF PORT STANLEY, CANADA, ASSIGNOR OF ONE-HALF TONVILLIAM STEPHENS, JOSEPH STEPHENS, AND HUGH STEPHENS, OF PORT BRUCE, CANADA.

END OR THRUST BEARING.

SPECIFICATION forming part of Letters Patent No. 585,516, dated June 29, 1897.

Application filed February 26, 1897. Serial No. 625,201. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM LOWRANCE EVELAND, a subject of the Queen of Great Britain, and a resident of Port Stanley, in the Province of Ontario and Dominion of Canada, have invented certain new and useful Improvements in End or Thrust Bearings; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

My invention relates to end or thrust bearings for the journals or axles of bicycles, carriages, and other vehicles and also for shafts generally in which there is an end thrust.

The object of the invention is to provide an improved construction of the same which shall possess superior ad vantages with respect to efficiency in use.

The invention consists in the novel construction and combination of parts hereinafter fully described and claimed.

In the accompanying drawings, Figure 1 is a central longitudinal sectional view of a thrust bearing constructed in accordance with my invention, showing the same applied to the hub of a bicyclewvheel. Fig. 2 is a perspective view of the central ring which carries the rollers. Figs. 3 and 4 are perspective views of the disks detached, between which the ring and its rollers are located.

In the said drawings the reference-numeral 1 designates the axle, and 2 the wheel-hub. Secured to this hub is a disk 3, havinga central hole for the passage of the axle and on its outer face is formed with an annular flange 4 at the rim.

The numeral 5 designates a similar disk provided with a similar flange 4 and is also formed with an inwardly-extending flange 6, which projects over the disk 3. Located between said disks is a ring 7, which is con cavoconvex in formthat is to say, it is bulged outward at the center, so that its inner and outer edges will be in different planes. This ring is formed with a series of openings 8, in which are located conical antifriction-rollers 9, provided with journals 10, which have their bearings in boxes 12, secured to said rlng.

It will be seen that the boxes for each roller are on opposite sides or faces of the ring, and by reason of the convexity of the latter the rollers will project equally on both sides of the ring instead of being more on one side, which would be the case if the ring were flat. This construction also adds greatly to the strength of the ring.

The numeral 13 designates a nut on the screw-threaded end of the axle which clamps and holds the disk 5 in place. The said disks 3 and 5 are beveled or grooved at 14, forming a way in which the rollers travel.

In use the end thrust is taken up by the rollers on the ring, and as the ring is loose as the wheel-hub revolves or rotates the ring will rotate with it, thereby greatly reducing the friction. The flange 6 serves to exclude dust and dirt from the disk and ring.

While I have shown the device applied to a bicycle-wheel hub, it is obvious that it may be used with other objects without departing from the principle of the invention.

Having thus fully described my invention, what I claim is-- 1. In a thrust or end bearing, the combination with the disks formed with flanges upon their adjoining faces, and grooves or bevels forming ways, of the loose concavo convex ring having openings therein, the boxes secured to opposite sides of said ring, and the conical rollers located in said openings and journaled in said boxes, substantially as described.

2. In a thrust or end bearing, the combination with the disks formed with flanges upon their adjoining faces and bevels or grooves forming ways, and one end of one of said disks formed with an annular flange overlapping the other disk, of the loose concavoconvex ring having openings therein, the boxes secured to opposite sides of said ring, the conical rollers located in said openings and journaled in said boxes, substantially as described.

In testimony that I claim the foregoing as my own Ihave hereunto affixed my signature in presence of two witnesses.

WILLIAM LOWRANCE EVELAND.

Witnesses:

D. A. MACINTYRE, ANDREW KANT. 

